I'm from the UK and did the Regimen with all products you can buy from the stores or Amazon UK.

I used:

Cetaphil Gentle Skin Cleanser

Cetaphil Moisturising Lotion (both can be found in the pharmacy section of Boots stores)

Olay Complete Care Sensitive Day Fluid spf 15 (can be found in any Boots/Superdrug store and in many supermarkets)

Pure Jojoba Oil (from Holland and Barrett stores, or there are alternatives on Amazon)

For the BP I used a gel that you can't get hold of any more called Panoxyl 2.5 Aquagel but I believe if you look on Amazon UK there's one called Benzac 2.5 water-based gel which I haven't personally used but looks like a good alternative and is the one I would go for if I were doing the Regimen again now.

I'm also still using the Cetaphil and Olay products two years on and they've never caused me any problems Hope this helps!